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Gyud0's avatar
Gyud0
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

Generic serial Flash interface sector erase problem

Hey, I'm using the Reference design Generic Serial Flash Interface IP on Quartus Prime 18.1 to access Micron MT25QL512Mb flash memory. Via NIOS processor, I able to erase the memory sector 0 (at ...
Gyud0's avatar
Gyud0
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

My code in C:

int main()

{

IOWR(INTEL_GENERIC_SERIAL_FLASH_INTERFACE_TOP_0_AVL_CSR_BASE,0x7,0x00000006); --Write enable

IOWR(INTEL_GENERIC_SERIAL_FLASH_INTERFACE_TOP_0_AVL_CSR_BASE,0x8,0x00000001); --Write enable

IOWR(INTEL_GENERIC_SERIAL_FLASH_INTERFACE_TOP_0_AVL_CSR_BASE,0xA,1); --Write enable

IOWR(INTEL_GENERIC_SERIAL_FLASH_INTERFACE_TOP_0_AVL_CSR_BASE,0x7,0x000004DC); --Erase sector

IOWR(INTEL_GENERIC_SERIAL_FLASH_INTERFACE_TOP_0_AVL_CSR_BASE,0x9,0x00010000); --Erase sector

IOWR(INTEL_GENERIC_SERIAL_FLASH_INTERFACE_TOP_0_AVL_CSR_BASE,0x8,0x00000001); --Erase sector

}

  • hareesh's avatar
    hareesh
    Icon for Frequent Contributor rankFrequent Contributor
    3 years ago

    Hi @Gyud0 ,

    It's not a GSFI (Generic Serial Flash Interface) IP driver issue. The GSFI drivers are working fine. Please check Micron MT25QL512Mb flash memory access code because before erasing the sector, you have to disable device lock protection, write command passing, and some other commands also have to execute. In the Micron MT25QL512Mb datasheet, all the details are available. I am giving some reference example code links for the Micron MT25QL512Mb.

    link:

    https://github.com/STMicroelectronics/stm32-mt25ql512abb

    thanks,